Question: what is the class IIIA combustible liquid with the highest vapor pressure whose has part is chlorine?
Paraphrase: What class IIIA combustible liquid that has chlorine has the highest vapor pressure?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q21009058 . ?ent wdt:P2119 ?obj . ?ent wdt:P527 wd:Q688 } ORDER BY DESC(?obj)LIMIT 5 
Answer: ethylene chlorohydrin, benzyl chloride